Quote:
Originally Posted by hcoles
Do the new (2019) 5.3 and 6.2L GM truck motors have a better (better long term reliability) deactivation scheme compared to the first gen. deactivation? Or is it the same mechanism with possibly better materials?
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I
think every engine has the new design now. My recollection is that the product was redesigned and the engine management software was revised.
I have a source at GM, but he would be very suspicious if I were to call and ask all the questions I want answered...